Knife



FIG. 1 is a perspective view as seen from the upper left side of a knife showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a blade end view thereof; and,

FIG. 6 is a handle end view thereof. 

The ornamental design for a knife, as shown and described. 